!72 自定义构建目录位置

From: @lvgenggeng 
Reviewed-by: @hubin95, @xiezhipeng1 
Signed-off-by: @xiezhipeng1

kpatch.spec

@@ -1,7 +1,7 @@
 Name:           kpatch
 Epoch:          1
 Version:        0.9.5
-Release:        15
+Release:        16
 Summary:        A Linux dynamic kernel patching infrastructure
 
 License:        GPLv2
@@ -119,6 +119,12 @@ popd
 %{_mandir}/man1/*.1.gz
 
 %changelog
+* Mon Oct 17 2022 lvgenggeng <lvgenggeng@uniontech.com> - 1:0.9.5-16
+- Type:enhancement
+- ID:NA
+- SUG:NA
+- DESC:make_hotpatch: add CUSTOM_BUILD_DIR env
+
 * Sun Oct 9 2022 Bin Hu <hubin73@huawei.com> -1:0.9.5-15
 - Type:bugfix
 - ID:NA

make_hotpatch

@@ -19,10 +19,17 @@ G_HOTPATCH_TAR=
 G_DIFFEXT=
 G_JOBS="$(getconf _NPROCESSORS_ONLN)"
 G_PATCH_SRC=
+if [ -z "$CUSTOM_BUILD_DIR" ];then
     G_KERNEL_SRC=/opt/patch_workspace/kernel-source
     G_KERNEL_CONFIG=/opt/patch_workspace/.config
     G_HOTPATCH_DIR=/opt/patch_workspace/hotpatch
     G_VMLINUX=/opt/patch_workspace/vmlinux
+else
+    G_KERNEL_SRC="$CUSTOM_BUILD_DIR"/kernel-source
+    G_KERNEL_CONFIG="$CUSTOM_BUILD_DIR"/.config
+    G_HOTPATCH_DIR="$CUSTOM_BUILD_DIR"/hotpatch
+    G_VMLINUX="$CUSTOM_BUILD_DIR"/vmlinux
+fi
 G_PREFIX=klp
 G_TMP_DIR=
 G_PATCHFILE=